
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 19-6-2 上午11:06
# @Author  : Jason
# @Site    : 
# @File    : views.py
# @Software: PyCharm

import time
from datetime import datetime, timedelta

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info.models import User, News, Category
from info.modules import news
from info.modules.admin import admin_blu
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET

@admin_blu.route('/news_type',methods=['get','post'])
def news_type():
    if request.method == "GET":
        #查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.erro(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            category_dict_li.append(cate_dict)
        # 移除最新的分类
        category_dict_li.pop(0)
        # 返回数据
        data = {
            'categories': category_dict_li

        }
        return render_template('admin/news_type.html', data=data)

    # 新增或者添加分类
    # 1. 取参数
    cname = request.json.get("name")
    # 如果传了cid，代表是编辑已存在的分类
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if cid:
        # 有 分类 id 代表查询相关数据
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg="数据查询错误")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)
    return jsonify(errno=RET.OK, errmsg="OK")

@admin_blu.route('/news_edit_detail',methods=['get','post'])
def news_edit_detail():
    if request.method=="GET":
        #查询点击的新闻的相关数据传入到模板中
        news_id = request.args.get("news_id")
        if not news_id:
            # return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻"})
            abort(404)
        try:
            news_id =int(news_id)
        except Exception as e:
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")

        # 通过id查询新闻
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")
        if not news:
            return render_template('admin/news_edit_detail.html', errmsg="未查询到此新闻")


        #查询数据分类
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.erro(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            #取到分类的字典
            cate_dict=category.to_dict()
            #判断当前遍历到的分类是否是当前新闻的分类,如果是则添加is_selected为True
            if category.id==news.category_id:
                cate_dict["is_selected"]=True
            category_dict_li.append(cate_dict)
        # 移除最新的分类
        category_dict_li.pop(0)
        # 返回数据
        data = {
                "news": news.to_dict(),
                'categories':category_dict_li

                }
        return render_template('admin/news_edit_detail.html', data=data)
    # 1.获取参数
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")

    # 2.校验参数判断空处理
    if not all([title,digest,content,category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    #3.1查询到指定的新闻数据
    try:
          news =News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")

    #3.2判断是否有图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

        # 2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key

    # # 3. 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id
    return jsonify(errno=RET.OK, errmsg="OK")

@admin_blu.route('/news_edit')
def news_edit():
    # 1获取参数
    page = request.args.get('p', 1)
    keywords= request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.erro(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1
    filters=[News.status==0]
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters).order_by(News.clicks.desc()).paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages

    except Exception as e:
        current_app.logger.erro(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())

    data = {
        'news_list': news_dict_li,
        'total_page': total_page,
        'current_page': current_page

    }
    return render_template('admin/news_edit.html', data=data)


@admin_blu.route('/news_review_action',methods=['POST'])
def news_review_action():
    #1.接受参数
    news_id = request.json.get("news_id")
    action=request.json.get('action')
    #2.参数校验
    if not all([news_id,action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in('accept','reject'):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    #3.查询指定的新闻数据
    try:
        news =News.query.get(news_id)
        print(news)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    if action == "accept":   # 代表接受
       news.status = 0
    else: # 代表拒绝
        reason = request.json.get("reason")
        if not reason:
             return jsonify(errno=RET.PARAMERR, errmsg="请输入拒绝原因")
        news.status = -1
        news.reason = reason


    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):
    # # 获取新闻id
    # news_id = request.args.get("news_id")
    # if not news_id:
    #     return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    # 1获取参数
    page = request.args.get('p', 1)
    keywords= request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.erro(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1
    filters=[News.status!=0]
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters).paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages

    except Exception as e:
        current_app.logger.erro(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    data = {
        'news_list': news_dict_li,
        'total_page': total_page,
        'current_page': current_page

    }
    return render_template('admin/news_review.html', data=data)

@admin_blu.route('/user_list')
def user_list():
    # 1.获取参数
    page = request.args.get('page', '1')
    # 2.校验参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.erro(e)
        page = 1

    users = []
    current_page = 1
    total_page = 1

    try:
        paginate =User.query.filter(User.is_admin==False).order_by(User.create_time.asc()).paginate(page,constants.USER_COLLECTION_MAX_NEWS,False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.erro(e)

    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data = {
        'users': user_dict_li,
        'total_page': total_page,
        'current_page': current_page

    }
    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/user_count')
def user_count():
    # 1.查询总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 2.月新增数
    mon_count = 0
    t = time.localtime()
    # TODO datetime.strptime(('%d-%02d-01'%(t.tm_year,t.tm_mon)),"%Y-%m-%d")
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 3.日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:

        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 4.折线图数据
    active_time = []
    active_count = []

    # 4.1取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 4.2转成时间对象
    today_date = datetime.strptime(today_date_str, '%Y-%m-%d')
    print(type(today_date))

    #4.3 遍历前一个月的用户的活跃数据
    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()

        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # 4.4反转,让最近的一天显示在最后
    active_count.reverse()
    active_time.reverse()
    print(active_time)


    data = {
        'total_count': total_count,
        'mon_count': mon_count,
        'day_count': day_count,
        'active_count': active_count,
        'active_time': active_time
    }
    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/index')
@user_login_data
def index():
    user=g.user
    return render_template('admin/index.html',user=user.to_dict())

@admin_blu.route('/login',methods=["GET","POST"])
def login():
    if request.method =='GET':
        #判断当前是否登录,如果登录直接重定向到管理员后台主页
        user_id=session.get('user_id',None)
        is_admin=session.get('is_admin',False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')

    #取到登录参数
    username =request.form.get('username')
    password=request.form.get('password')
    #判断参数
    if not all ([username ,password]):
        return render_template('admin/login.html',errmsg='参数错误')
    # 查询当前用户
    try:
          user=User.query.filter(User.mobile==username,User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="用户信息查询失败")

    if not user:
        render_template('admin/login.html',errmsg='为查询到用户')

    # 校验密码
    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="用户名或者密码错误")
    # 保存用户的登录信息
    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    # 跳转到后面管理首页
    return redirect(url_for('admin.index'))